Very nice art style, seems impossible at first, but easy to cheese.
Love the visuals and the sound design is also very nice.
Attacking and dodging feel very tight, but the jump and double jump feels a bit floaty.
I was unsure how to beat anything at first, since they move so fast, and teleport around. Boss attacks have close to no windup or recovery time, and the window where you can "punish" them is very small.
But I persevered, cheesed them, and the broke the game with the lifedrain on attack.
Would love to see the quirks on this fixed, and expanded!
PS. I found your secret area :)